Question

mammals and birds have four chambered heart why​

Answer 1

Answer:

mammals and birds have 4 chambered heart as they have high energy needs in order to maintain their body temperature. separation of the chambers prevents the mixing of the oxygenated and deoxygenated blood which allows a high efficient supply of oxygen to the body

Answer 2

Answer:

Because they require energy to maintain their body homeostasis.

Explanation:

• Mammals and birds are warm-blooded animals and thus they are required to maintain a constant body temperature for respiration to carry out smoothly. And for respiration, more oxygen is needed. For which the four-chambered heart is efficient.

• The heart in mammals and birds is divided into 4 chambers i.e. right and left atria and right and left ventricle.

• Here the left half is completely separated from the right half by the presence of septa which prevents the mixing of oxygenated blood with impure or deoxygenated blood.

• This results in a highly efficient system for the supply of oxygenated blood to all parts of the body ensuring double circulation.

This is the reason mammals and birds have a four-chambered heart to ensure the complete separation of oxygenated blood from deoxygenated blood to maintain constant body homeostasis.